1. National Drug and Alcohol Research Centre UNSW Sydney Sydney Australia
2. Kirby Institute, UNSW Sydney Sydney Australia
3. Behaviours and Health Risks Program, Burnet Institute Melbourne Australia
4. National Drug Research Institute Melbourne Australia
5. Department of Epidemiology and Preventive Medicine Monash University Melbourne Australia
6. School of Psychological Science University of Tasmania Hobart Australia
7. Harm Reduction Victoria Melbourne Australia
8. Institute for Social Science Research University of Queensland Brisbane Australia